*{
    margin: 0;
    padding: 0;
}
a{
    text-decoration: none;
}
.banner .slideBox .bd li {
    zoom: 1;
    vertical-align: middle;
    height: 600px;
    position: relative;
    overflow: hidden;
}
.banner .head ul {
    overflow: hidden;
    margin: 23px 0 0 0;
}
.fr {
    float: right;
}
ol, ul, li {
    list-style: none;
    vertical-align: top;
}
.banner .head ul li {
    height: 40px;
    line-height: 40px;
    text-align: center;
    font-size: 16px;
    float: left;
    padding: 0 27px;
}
ol, ul, li {
    list-style: none;
    vertical-align: top;
}
.banner .head ul li .li_a {
    display: block;
    width: 100%;
    height: 100%;
    color: rgba(255,255,255,.5);
}
:link, :visited, ins {
    text-decoration: none;
}
a{
    text-decoration: none;
    outline: none;
    color: #333;
}
.sub_nav .navtop span {
    font-size: 18px;
    color: #fff;
    padding: 36px 0 2px 28px;
    display: block;
}

a:-webkit-any-link {
    color: -webkit-link;
    cursor: pointer;
    text-decoration: underline;
}
.banner .head {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 87px;
    border-bottom: 1px rgba(255,255,255,.2) solid;
}
.ban{
    position: relative;
}
.ban .ulon{
    position: absolute;
    width: 233px;
    height: 394px;
    color: rgba(255,255,255,.5);
    left: 0;
    bottom: 0;
}
.ban .ulon li{
display:inline-block;
}
.banner .banbot {
    height: 99px;
    background: #fff;
    border-bottom: 1px #eaeaea solid;
}
.box_In {
    width: 1200px;
    margin: 0 auto;
}
.banner .banbot ul li {
    float: left;
    width: 232px;
    height: 99px;
    padding-left: 64px;
}
.banner .banbot ul li img {
    float: left;
    margin: 20px 18px 0 0;
}
a img {
    border: none;
}
.banner .banbot ul li span {
    float: left;
    line-height: 61px;
    margin-top: 20px;
    font-size: 22px;
    color: #464c5b;
}
.box_In {
    width: 1200px;
    margin: 0 auto;
}
.box_hd h2 {
    font-size: 40px;
    color: #34363c;
    text-align: center;
    font-weight: 100;
}
.box_hd h2 b {
    margin-right: 10px;
}

b {
    font-weight: bold;
}
.box_hd p {
    font-size: 16px;
    color: #9ca7b6;
    text-align: center;
    margin-top: 14px;
}
.box1 .box1_con {
    padding-top: 56px;
}
.clears {
    zoom: 1;
    width: 1350px;
    /* height: 500px; */
    margin: auto;
    /* background-color: red; */
}
.clears li{
    width: 220px;
    height: 180px;
    margin: 20px;
    background-color: #fff;
    display: inline-block;
    border: 1px solid #ccc;
    border-radius: 15px;
}
.box1 .box1_con .box1p {
    font-size: 16px;
    color: #657180;
    text-align: center;
    padding: 24px 0 10px;
}
.a_btn {
    width: 353px;
    background: #ff5519 url(../images/abtn.png) no-repeat 323px center;
    color: #fff;
    font-size: 24px;
    border-radius: 50px;
    display: block;
    height: 56px;
    line-height: 56px;
    text-align: center;
    margin: 0 auto;
}
.box1 .box1_con ul li .box1pic i {
    display: block;
    width: 59px;
    height: 77px;
    background: url(http://www.itheima.com/2020phone/images/xk_icons2.png) no-repeat 0 0;
    margin: 0 auto;
    -moz-transform: scale(0.9);
    -ms-transform: scale(0.9);
    -o-transform: scale(0.9);
    transform: scale(0.9);
}
.box1 .box1_con ul li .box1con_mask {
    width: 100%;
    height: 100%;
    position: absolute;
    left: -1px;
    top: -1px;
    background: #f5f5f5;
    border: 1px #e5ebf9 solid;
    border-radius: 12px;
    /* display: none; */
    -moz-transform: scale(0.6);
    -ms-transform: scale(0.6);
    -o-transform: scale(0.6);
    transform: scale(0.6);
    opacity: 0;
    transition: all 0.4s;
    -moz-transition: all 0.4s;
    -webkit-transition: all 0.4s;
    -o-transition: all 0.4s;
}
.box1 .box1_con ul li h3 {
    font-size: 18px;
    color: #464c5b;
    padding: 8px 0 8px 28px;
}
.box1 .box1_con ul li p {
    font-size: 14px;
    color: #9ca7b6;
    padding-left: 28px;
}
.box1 .box1_con ul li.sub_box1pic1 .box1pic {
    width: 61px;
    height: 61px;
    border-radius: 50%;
    background: #ececec;
    padding-top: 7px;
    margin: 22px 0 14px 26px;
}
.box1 .box1_con ul li.sub_box1pic1 .box1pic img {
    display: block;
    width: 42px;
    margin: 0 auto;
}
.list{
    width: 200px;
    height: 250px;
    background-image: url('http://yun.itheima.com/Upload/./Images/20211011/6163b1914c81b.jpg');
    background-size: cover;
}
.cur{
    width: 196px;
    height: 65px;
   padding: 10px;
   display: inline-block;
}
.box4 .box4_con .box4con_top li {
    float: left;
    padding: 0 51px;
    height: 200px;
    border-right: 1px #d9dee5 solid;
}
.mask{
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, .7) url('http://yun.itheima.com/Root/images/sy_box3guankan.png') no-repeat center;
    position: absolute;
    left: 0;
    top: 0;
    overflow: hidden;
    display: none;
   
}
.list:hover .mask{
    display: block;
}
.ban{
    /* width: 500px;
    height: 500px;
    margin: 0 auto; */
    position: relative;
}
.now-left{
    position: absolute;
    top: 90%;
    left: 20px;
    font-size: 32px;
}
.now-right{
    position: absolute;
    top: 90%;
    left:93%;
    font-size: 32px;
}
.ul_dian{
    position: absolute;
    top: 90%;
    left: 38%;
}
.ul_dian li{
    float: left;
}
